Pipe-conduit fitting for electric installation.



W. H. VIBBER. PIPE GONDUIT FITTING FORELEOTRIO INSTALLATION. APPLIOATION FILEDOOT. s, 1910.

1,064,402. Patented June 10,1913;

2 SHEETS-SHEET 1.

T l iirzesses I72 oniar @yw. Q/M 912% W. H. VIBBBR.

PIPE GONDUIT FITTING I 'OR ELECTRIC iNSTALLATION. APPLICATION FILED OGT. a, 1910.

'1 64,402. Patented Julie 10,1913.

2 SKEETS-SHEET 2.

VVZ 77265565 In 0672 2 02" UNITED STATES PATENT OFFICE.

VJHEELER H. VIBBER, OF NEW LONDON, CONNECTICUT, ASSIGNOR F ONE-HALF TO THE GILLETTE-VIBBER (20., OF NEW LONDON, CONNECTICUT, A CORPORATION.

PIPE-CONDUIT FITTING FOR ELECTRIC INSTALLATION.

Specification of Letters Patent.

Application filed October 3, 1910. Serial No. 585,118.

none 102.

Patented J one 10, 1913.

all whom it may concern:

lie it known that l, Wnuamn ll. Vinnnn, a citizen of the United States, residing at New London, in the county of New London and. State of Connecticut, have invented a new and useful Improvement in Pipe-Conduit Fittings for Electric Installation; and

' I do hereby declare the following, when taken in connection with the accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description oi the same, and which said drawings constitute part of this specification, and

represent, in-

Figure 1 a view in side elevation of a terminal-fitting constructed in accordance with my invention, one end of the bodyportion of one of the two halt-scctiohs being broken away. Fig. 9 a view of the fitting in end elevation. Fig. 3 a plan view there of. Fig. t a View in vertical section on the line c& of. Fig. 1. Fig. 5 a view in side elevation of a unction-fitting constructed in accordance with my invention. Fig. 6 an Figs. 1 to 4 inclusive, my improved fitting consists ot two corresponding unthrcadcd half-scctimis, each half-section being cast in one piece and each comprising an pblong hollow bmtv-portion f2 and a Still !l-(fll (illlill.' centrally arranged outlet-portion 3. Each halt-section is also 'lornwd at each end with a perforated lug l for the reception oi hinding screws 5. As shown (aiclrhali-scction lS torn'icd at the open Qllll 'oli its body-portion with an inwardly extending horizonlally arranged retaining-flange 6 entering longitudinal grooves 7 in the sides and ends of porcelain insulating 'lramcs 8 each oJl which. is l'ormcd upon its inner edge with three transverse scini-circular grooves 5.). Each oi the llangcs (3 consists ol' a long straight side. member and two relatively short parallel end-members extending at a right angle thereto,whilc the grooves 7 in the sides and ends of the frames 8 have corresponding side and end portions. When the fitting is as: sembled, the retainingiianges 6 of the bodyportions 2 of the fitting combine to form a rectangular opening in which the flanges suspend, as it were, the rectangular closure formedby placing the two porcelain frames 8 in juxtaposition. \Vhen the fitting is as sembled also, the grooves 9 ofthe frames 8 register, as shown in Fig. 3, and form circular openings 10 for the passage of cables into the main body-portion of the fitting. Each of the half-sections is formed on the inside and between its body-portion 2 and its outlet-portion 3, with a horizontally arv ranged stop-shoulder 11 which is abutted against the end of the conduit and positions the fitting thereupon. The outlet-portion 3 of each half-section is also formed upon its inner face with gripping ribs 12 and '13 which serve to heighten the grip of the fitting upon the conduit. Y

By making the fitting in two half-sections each consisting of a body p0rtion and an outlet p'ortion, I secure a singularly simple and compact. construction and one adapted to be applied and removed with the utmost convenience. This principle of construction may obviously be applied to pipe-conduit fittings adapted in their *form' to be used in different situations, and to pipe-conduit fittings having more than one outlet. Thus the fitting shown in Figs. 1 to 4 inclusive is what is known as a terminal fitting. In

Figs. 5 and 6 I have shown a fitting designed to be used as a junction fitting and so known. This consists of two cor-re spending half-sections each consisting of an oblong body-portion 141 formed at its respective ends with corresponding integral outlet-portions 15 and 16. Each of these half-sections is also formed with two perforated cars 17 for the reception of bindingscrews 18. These half-sections are also adapted to receive insulating frames 19 like the frames 8 already described, and secured in place in the same way. The construction shown by Figs. 5 and (5 is sullicient to indicate the feasibility of applying my inven tion to different forms of pipe-conduit fittings.

My improved littings when constructed as described, are provided with large chambers which, on account of their unobstructed character, give the largest possible opportunity for the reception of cables and for splicing operations. I Wish also to call particular attention to the fact that my improved fitting may be applied to an unthreaded pipe-conduit after the Wires are all in and connected up, without cutting away any of them since both of the corresponding half-sections of the fitting and both of the corresponding halt-sections of the insulatingirame may be readily applied to the pipe-conduits and to the Wires after the same are all in position,--\vithout cutting them or in any way disturbing them; whereas p'ipeconduit fittings asheretofore constructed have not permitted this to be done, but --have compelled the electrician to instal at least a part of the fitting before running and connecting the Wires.-

I claim:

In a pipe-conduit fitting for electric in-- stallation with pipe-conduits, the combination with two corresponding fitting-sections each comprising an oblong body-portion having a single unobstructed oblong halfchamber provided at its open end with means for retaining in' place a hali section of a two-part sectional insulating-frame, and also comprising a semi-circular outlet-portion formed near its inner end with a semicircular abutment or positioning-flange, and with a shallow semi-circular clearance groove flanked by semi-circular grippingribs; of two. corresponding insulating frame-sections adapted to be held by the said retaining means within the open ends of the fitting-sections when the same are clamped upon a pipe-conduit; and clamping devices for clamping the two fitting-sections upon the end of a pipe-conduit, whereby the entire fitting may be applied to a pipe-conduit after the wires have been run through the same and connected up, without cutting any of the Wires.

In testimony whereof, I have signed this specification in the presence of two subscrib-.

ing Witnesses.

WHEELER H. VIBBER. l Vitn esses CLARA L. NEED, FnnnERIo O. EARLE. 

